题目

能将太阳能转化为电能的材料是（ ）A. 硅 B. 二氧化硅 C. 硅酸钠 D. 硅酸钙 答案：【答案】A【解析】太阳能电池板是半导体材料制成的，能直接把太阳能转化成电能，硅单质属于半导体材料，因此硅可以制成太阳能电池板，其余选项中的物质均不是半导体材料，故选A。阅读下面材料，在空白处填入适当的单词（1个单词）或括号内单词的正确形式。 Many couples are quite puzzled about this question.How can lovers be devoted to each other for long? Actually, they just complain about their marriage to their partners all the time,not1.(know) how to deal with the marriage crisis. “Before we were2.(marry),my husband was a caring man,“a wife once told me.“It seemed that he would love me till the end of the world.Since we got married,he3.(become) a lazy bone.He watches ball games more than he watches me.He has changed so much that I can4.(hard) bear him.” “Very funny,”answered the husband.“But have you looked at yourself lately?Several years ago,you were very beautiful.Now you wear that old dress.If I've changed from5.energetic man to a lazy one,then you've changed yourself from a6.(beauty) lady to an ugly one.”This hurtful but childish7.(argue) shows how couples, instead of looking for love,may look for all the8.(fault) that his/her partner has in their daily life. Honestly speaking,how we see our partners often depends more9.how we are than how they are.It is a way of seeing.Husbands and wives are not audience10.participant observers in each other’s life.Remember that the law of lasting love is to look at your lover with love.